Oliver had seven times as much money as Seth. After Oliver had spent $110, Seth had eight times as much money as Oliver. How much more money than Seth had Oliver at first?
| |
Oliver |
Seth |
More |
Before
|
7x8 =
56 u |
1x8 =
8 u |
48 u |
| Change |
- $110 |
|
|
| After |
1 u |
8 u |
|
The amount that Seth had remains unchanged. Make the amount that Seth had the same. LCM of 1 and 8 is 8.
Amount that Mark had in the end = 1 u
56 u - 110 = 1 u
56 u - 1 u = 110
55 u = 110
1 u = 110 ÷ 55 = 2
Amount that Seth had more than Oliver at first
= 56 u - 8 u
= 48 u
= 48 x 2
= $96
Answer(s): $96
